Cam lead screw jacking type steering sorting mechanism and balance wheel sorting machine
By using a cam screw lift steering sorting mechanism in the balance sorter, the unstable packaging attitude and blocking of the packaging caused by the conveying sorting surface of the balance sorter roller is higher than the rear-end conveying line, and a more efficient and accurate sorting process is achieved.
Patent Information
- Application Number
- CN202420679691.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-04-03
AI Technical Summary
During the logistics sorting process, the roller conveying and sorting surface of the balance sorter is higher than the rear-end conveying line, resulting in unstable center of gravity of the package, which can easily cause skewed posture, which will lead to sorting failure and blockage.
A cam screw lift steering sorting mechanism is adopted, which includes a floating seat, a base and a servo motor. The nut on the screw nut pair is driven to move through the servo motor, and the slider on the guide rail slide pair is driven to move forward and reverse rotation of the cam, and the up and down movement of the floating seat is driven through the cam, ensuring that the conveying surface of the balance unit is flush with the front and rear conveying line or raised to the same height as the sorting port.
When the package is conveyed directly, the conveying surface of the balance unit is flush with the front and rear conveying lines, and is lifted to the same height as the sorting port in the sorting state, avoiding blocking and stopping of the line, and improving sorting efficiency and accuracy.
Smart Images
Figure CN222872748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of logistics sorting equipment, in particular to a cam screw rod lifting type steering sorting mechanism and a pendulum wheel sorting machine adopting the mechanism. Background Art
[0002] With the rapid development of e-commerce, the logistics industry has also grown rapidly. In the logistics industry, the balance wheel sorter is widely used in various application scenarios due to its advantages such as high sorting efficiency, large load and fast response. In addition, in actual on-site application scenarios, in order to meet the customer's needs for the layout of the sorting port and the maximum utilization of the site with the greatest efficiency, multiple balance wheel sorters will be arranged in series on the same main line or branch line.
[0003] However, in order to fully divert the parcel to the sorting port, the roller conveyor sorting surface of the oscillating wheel sorter is usually higher than the conveying surface of the rear conveyor line by a certain distance. As a result, when the unsorted parcel passes through the frequently started and stopped oscillating wheel sorter, the parcel may stay half on the oscillating wheel sorter and half on the rear conveyor line. When the line is started again, due to the unstable center of gravity of the parcel and the height difference between the oscillating wheel sorter and the conveyor line, the parcel posture is easily skewed, causing the subsequent sorting failure and package jam of the oscillating wheel sorter. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a cam screw lifting type steering sorting mechanism which can fully divert the parcel to the sorting port and avoid the line stopping due to the parcel blocking.
[0005] The utility model adopts the following technical solutions:
[0006] The utility model provides a cam screw rod lifting type steering sorting mechanism, comprising a floating seat, a base and a servo motor, wherein a plurality of swing wheel units with synchronously adjusted swing angles are arranged on the top of the floating seat, a plurality of rolling bearings are symmetrically arranged at intervals on the bottom, the floating seat can be installed on the base in a lifting manner, a screw rod nut pair and a guide rail slider pair are arranged in parallel and at intervals on the base, a plurality of rotatable cams are symmetrically arranged in intervals in the interval space between the screw rod nut pair and the guide rail slider pair, each cam is respectively abutted against a rolling bearing, a nut on the screw rod nut pair is connected to a slider on the guide rail slider pair in a one-to-one correspondence through a connecting shaft, and each connecting shaft vertically passes through a cam, and the servo motor is arranged on the base and is axially connected to the screw on the screw rod nut pair.
[0007] Preferably, a plurality of roller bearing seats are symmetrically arranged at intervals on the bottom of the floating seat, and each rolling bearing is rotatably arranged in a roller bearing seat.
[0008] Preferably, two linear bearings are spaced apart on the base, and the floating seat is connected to the base via the two linear bearings.
[0009] Preferably, a driving nut is provided on the screw nut pair, a driving slider is provided on the guide rail slider pair, the driving nut and the driving slider are connected via a connecting plate, a swing driving shaft is provided on the top of the connecting plate, a plurality of balance wheel units are rotatably hinged on the top of the floating seat, and the same side end of each balance wheel unit is hinged to the swing frame, and the swing driving shaft is arranged to pass through the bottom of the swing frame.
[0010] Preferably, the balance wheel unit comprises an articulated frame and a roller, the articulated frame is rotatably hinged on the top of the floating seat, and one side end of the articulated frame is hinged to the swing frame, and the roller is rotatably hinged on the articulated frame.
[0011] Preferably, the screw-nut pair includes a bearing seat, a screw, a nut and a driving nut. The two bearing seats are arranged at intervals on the base. The two ends of the screw are respectively passed through a bearing seat, and the head end of the screw passes through the bearing seat and is axially connected to the driving end of the servo motor through a coupling. Two nuts and one driving nut are screwed on the screw, and the driving nut is located between the two nuts.
[0012] Preferably, the guide rail and slider pair comprises a guide rail, a slider and a driving slider, a linear slideway is provided on the guide rail, two sliders and one driving slider are both reciprocatingly slidably arranged in the linear slideway, and the driving slider is located between the two sliders.
[0013] The utility model also provides a pendulum wheel sorting machine, which adopts the cam screw rod lifting type steering sorting mechanism described in any one of the above items.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] When the cam lead screw lifting type steering sorting mechanism of the utility model is in use, the servo motor drives the nut on the lead screw nut pair to move left and right, and the connecting shaft synchronously drives the corresponding slider on the guide rail slider pair to move left and right. At this time, the connecting shaft can relatively stably drive the cam to rotate in the positive and negative directions, and the cam will drive the upper floating seat to move up and down through the abutting rolling bearings during the rotation process, so that when the package is transported straight, the conveying surface of the pendulum unit on the floating seat is flush with the conveying surface of the front and rear conveying lines; and when the package is in the sorting state, the cam drives the conveying surface of the pendulum unit on the floating seat to be lifted to the same height as the conveying surface of the rear belt conveyor of the bevel machine at the sorting port, and is higher than the conveying surface of the rear conveying line.
[0016] Obviously, the cam screw lifting steering sorting mechanism of the utility model can fully turn the parcel to the sorting port, while avoiding package blockage and line stop by overcoming the height difference between the conveying surface of the swing wheel unit and the conveying surface of the front and rear conveying lines.
[0017] Since the pendulum wheel sorting machine of the present invention adopts the above-mentioned cam screw jacking type steering sorting mechanism, it naturally has the above-mentioned beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a first-view structural diagram of a cam screw lifting type steering sorting mechanism in an embodiment of the utility model.
[0019] Figure 2 It is a second viewing angle structural diagram of the cam screw lifting type steering sorting mechanism in the embodiment of the utility model.
[0020] Figure 3 yes Figure 1 main view.
[0021] Figure 4 yes Figure 2 main view.
[0022] Figure 5 It is a structural diagram of the upper swing wheel unit part of the cam screw rod lifting type steering sorting mechanism in the embodiment of the utility model.
[0023] Figure 6 It is a structural diagram of the upper screw nut pair part of the cam screw jacking type steering sorting mechanism in the embodiment of the utility model.
[0024] Figure 7 It is a structural diagram of the guide rail slider sub-part of the cam screw rod lifting type steering sorting mechanism in the embodiment of the utility model.
[0025] The reference numerals are described as follows:
[0026] 1. Floating seat 214, bearing seat
[0027] 11. Balance wheel unit 22. Guide rail slider pair
[0028] 111, articulated frame 221, slider
[0029] 112, roller 222, driving slider
[0030] 12. Rolling bearing 223. Guide rail
[0031] 13. Roller bearing seat 23. Cam
[0032] 14. Swing frame 24. Connecting shaft
[0033] 2. Base 25, linear bearing
[0034] 21. Screw nut pair 26. Connecting plate
[0035] 211, nut 27, swing drive shaft
[0036] 212, screw 3, servo motor
[0037] 213, drive nut 4, coupling DETAILED DESCRIPTION
[0038] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.
[0039] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0042] See also Figures 1 to 4 , and combined with Figure 6The present embodiment provides a cam screw lifting type steering sorting mechanism, comprising a floating seat 1, a base 2 and a servo motor 3. The top of the floating seat 1 is provided with a plurality of swing wheel units 11 with synchronously adjusted swing angles, and the bottom is symmetrically provided with a plurality of rolling bearings 12. The floating seat 1 can be mounted on the base 2 in a lifting manner. A screw nut pair 21 and a guide rail slider pair 22 are arranged in parallel and at intervals on the base 2. A plurality of rotatable cams 23 are symmetrically arranged in the interval space between the screw nut pair 21 and the guide rail slider pair 22. Each cam 23 is respectively in contact with a rolling bearing 12. The nut 211 on the screw nut pair 21 is connected to the slider 221 on the guide rail slider pair 22 in a one-to-one correspondence through a connecting shaft 24, and each connecting shaft 24 vertically passes through a cam 23. The servo motor 3 is arranged on the base 2 and is axially connected to the screw 212 on the screw nut pair 21.
[0043] See also Figure 1 , Figure 3 and Figure 6 When the cam screw jacking type steering sorting mechanism of this embodiment is in use, the servo motor 3 drives the nut 211 on the screw nut pair 21 to move left and right, and the connecting shaft 24 synchronously drives the corresponding slider 221 on the guide slider pair 22 to move left and right. At this time, the connecting shaft 24 can drive the cam 23 to rotate forward and reverse more smoothly, and the cam 23 will drive the upper floating seat 1 to move up and down through the abutting rolling bearing 12 during the rotation process, so that when the package is transported straight, the conveying surface of the pendulum unit 11 on the floating seat 1 is flush with the conveying surface of the front and rear conveying lines; and when the package is in the sorting state, the cam 23 drives the conveying surface of the pendulum unit 11 on the floating seat 1 to be lifted to the same height as the conveying surface of the rear belt conveyor of the bevel machine at the sorting port, and higher than the conveying surface of the rear conveyor line.
[0044] Obviously, the cam screw lifting steering sorting mechanism of this embodiment can fully redirect the parcel to the sorting port while avoiding package blockage and line stop by overcoming the height difference between the conveying surface of the pendulum unit 11 and the conveying surface of the front and rear conveying lines.
[0045] Preferably, see Figure 3 and Figure 6 A plurality of roller bearing seats 13 are symmetrically arranged at intervals at the bottom of the floating seat 1, and each rolling bearing 12 is rotatably arranged in a roller bearing seat 13. The rotatable arrangement of the rolling bearing 12 enables the rolling bearing 12 to rotate relative to the cam 23 when the cam 23 drives the floating seat 1 to move up and down, thereby avoiding friction between the cam 23 and the rolling bearing 12 and extending the service life of the cam 23.
[0046] Preferably, see Figure 3 and Figure 4Two linear bearings 25 are arranged on the base 2 at intervals, and the floating seat 1 is connected to the base 2 through the two linear bearings 25. The linear bearings 25 can provide guidance for the floating seat 1 to move up and down relative to the base 2, and realize the lifting connection between the floating seat 1 and the base 2.
[0047] Preferably, see Figure 3 , Figure 4 and Figure 7 A driving nut 213 is provided on the screw nut pair 21, and a driving slider 222 is provided on the guide rail slider pair 22. The driving nut 213 and the driving slider 222 are connected through a connecting plate 26. A swing driving shaft 27 is provided on the top of the connecting plate 26. Multiple balance wheel units 11 are rotatably hinged on the top of the floating seat 1, and the same side end of each balance wheel unit 11 is hinged to the swing frame 14. The swing driving shaft 27 is set to pass through the bottom of the swing frame 14.
[0048] See also Figure 3 , Figure 4 and Figure 7 When the servo motor 3 drives the lead screw 212 to rotate, the driving nut 213 will drive the driving slider 222 to move synchronously through the connecting plate 26, so that the swing driving shaft 27 on the top of the connecting plate 26 can drive the swing frame 14 to move horizontally more stably, and then drive multiple balance wheel units 11 to synchronously perform equal-angle swinging motions.
[0049] Therefore, the cam-screw lifting steering sorting mechanism of this embodiment drives the screw 212 on the screw nut pair 21 to rotate through the servo motor 3, so as to realize the synchronous angle adjustment of multiple balance wheel units 11 on the floating seat 1 while lifting the floating seat 1, thereby ensuring the synchronous linkage of the lifting and deflection of the balance wheel unit 11.
[0050] Preferably, see Figure 5 The balance wheel unit 11 includes an articulated frame 111 and a roller 112. The articulated frame 111 is rotatably hinged on the top of the floating seat 1, and one side end of the articulated frame 111 is hinged to the swing frame 14. The roller 112 is rotatably hinged on the articulated frame 111. When the parcel needs to be transported by the balance wheel unit 11, the roller 112 on the electronically controlled balance wheel unit 11 rotates to realize the parcel transportation.
[0051] Preferably, see Figure 3The screw-nut pair 21 includes a bearing seat 214, a screw 212, a nut 211 and a driving nut 213. The two bearing seats 214 are arranged at intervals on the base 2. The two ends of the screw 212 are respectively inserted into a bearing seat 214, and the head end of the screw 212 passes through the bearing seat 214 and is axially connected to the driving end of the servo motor 3 through the coupling 4. The two nuts 211 and one driving nut 213 are all screwed on the screw 212, and the driving nut 213 is located between the two nuts 211.
[0052] Preferably, see Figure 4 The guide rail and slider pair 22 includes a guide rail 223, a slider 221 and a driving slider 222. A linear slideway is provided on the guide rail 223. Two sliders 221 and one driving slider 222 can be reciprocatingly slidably arranged in the linear slideway, and the driving slider 222 is located between the two sliders 221.
[0053] This embodiment also provides a pendulum wheel sorting machine, which adopts the above-mentioned cam screw lifting type steering sorting mechanism. Since the pendulum wheel sorting machine adopts the above-mentioned cam screw lifting type steering sorting mechanism, it has two working states of conveying and sorting. The pendulum wheel unit in each working state has two different heights, so that the conveying and sorting of the package are more stable, ensuring a higher sorting accuracy and the handling of complex environments.
[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A cam screw lifting type steering sorting mechanism, characterized in that: The invention comprises a floating seat (1), a base (2) and a servo motor (3); the top of the floating seat (1) is provided with a plurality of swing wheel units (11) with synchronously adjusted swing angles, and the bottom is provided with a plurality of rolling bearings (12) symmetrically spaced apart; the floating seat (1) can be installed on the base (2) in a lifting manner; a screw nut pair (21) and a guide rail slider pair (22) are arranged on the base (2) in parallel and spaced apart; a plurality of roller bearings (12) are symmetrically spaced apart in the space between the screw nut pair (21) and the guide rail slider pair (22) A rotatable cam (23), each of the cams (23) is respectively in contact with one of the rolling bearings (12), the nut (211) on the screw nut pair (21) is connected to the slider (221) on the guide rail slider pair (22) in a one-to-one correspondence via a connecting shaft (24), and each of the connecting shafts (24) vertically passes through one of the cams (23), and the servo motor (3) is arranged on the base (2) and is axially connected to the screw (212) on the screw nut pair (21).
2. The cam screw lifting steering sorting mechanism according to claim 1 is characterized in that: A plurality of roller bearing seats (13) are symmetrically arranged at intervals on the bottom of the floating seat (1), and each rolling bearing (12) is rotatably arranged in one of the roller bearing seats (13).
3. The cam screw lifting type steering sorting mechanism according to claim 1 is characterized in that: Two linear bearings (25) are arranged at intervals on the base (2), and the floating seat (1) is connected to the base (2) via the two linear bearings (25).
4. The cam screw lifting type steering sorting mechanism according to claim 1, characterized in that: The screw nut pair (21) is provided with a driving nut (213), the guide rail slider pair (22) is provided with a driving slider (222), the driving nut (213) and the driving slider (222) are connected via a connecting plate (26), a swing driving shaft (27) is provided at the top of the connecting plate (26), a plurality of the balance wheel units (11) are respectively rotatably hinged at the top of the floating seat (1), and the same side end of each of the balance wheel units (11) is hinged to the swing frame (14), and the swing driving shaft (27) is arranged to pass through the bottom of the swing frame (14).
5. The cam screw lifting type steering sorting mechanism according to claim 4 is characterized in that: The balance wheel unit (11) comprises an articulated frame (111) and a roller (112); the articulated frame (111) is rotatably hinged on the top of the floating seat (1), and one side end of the articulated frame (111) is hinged to the swing frame (14); and the roller (112) is rotatably hinged on the articulated frame (111).
6. The cam screw lifting type steering sorting mechanism according to claim 4, characterized in that: The screw rod and nut pair (21) comprises a bearing seat (214), a screw rod (212), a nut (211) and a driving nut (213); two bearing seats (214) are arranged on the base (2) at intervals; two ends of the screw rod (212) are respectively inserted into one of the bearing seats (214); a head end of the screw rod (212) passes through the bearing seat (214) and is axially connected to a driving end of the servo motor (3) through a coupling (4); two nuts (211) and one driving nut (213) are both screwed onto the screw rod (212), and the driving nut (213) is located between the two nuts (211).
7. The cam screw lifting type steering sorting mechanism according to claim 6, characterized in that: The guide rail and slider pair (22) comprises a guide rail (223), a slider (221) and a driving slider (222); a linear slideway is provided on the guide rail (223); two sliders (221) and one driving slider (222) are both reciprocatingly slidably arranged in the linear slideway, and the driving slider (222) is located between the two sliders (221).
8. A balance wheel sorting machine, characterized in that: A cam screw lifting type steering sorting mechanism is adopted as described in any one of claims 1 to 7.